AC rotary machine apparatus

Abstract

With the object of preventing deterioration due to the temperature when charging a secondary battery, a configuration is such that currents are controlled so as to be caused to flow equally through the respective phases of three-phase coils of a second group which configure an AC rotary machine body, whereby a large current is caused to flow for a short time, causing the secondary battery to rise in temperature, even when the AC rotary machine body is in a state of rest.

The invention claimed is: 
     
       1. An AC rotary machine apparatus, comprising:
 a temperature sensor; 
 an AC rotary machine body which has a magneto rotor and has first three-phase coils and second three-phase coils for generating rotating magnetic fields in the magneto rotor; 
 a battery which supplies power to the first three-phase coils and the second three-phase coils; and 
 a power conversion device which converts direct current generated by the battery to alternating currents, 
 wherein a rotary torque of the AC rotary machine body is controlled by controlling the alternating currents generated by the power conversion device, and 
 wherein, based on identifying that temperature information of the temperature sensor indicates to execute an increase in a temperature of the AC rotary machine body, the power conversion device is configured to operate so that three-phase alternating currents which are of the same magnitude as and different in phase by 180 degrees from those of U-phase, V-phase, and W-phase of the first three-phase coils are respectively supplied to X-phase, Y-phase, and Z-phase of the second three-phase coils in the AC rotary machine body, to increase the temperature of the AC rotary machine body. 
 
     
     
       2. The AC rotary machine apparatus according to  claim 1 , wherein the U-phase, V-phase, and W-phase of the first three-phase coils and the X-phase, Y-phase, and Z-phase of the second three-phase coils in the AC rotary machine body are disposed around the magneto rotor with a phase difference of 120 degrees between the U-, V-, and W-phases and between the X-, Y-, and Z-phases, and
 wherein each of the phase difference between the U-phase and the X-phase, the phase difference between the V-phase and the Y-phase, and the phase difference between the W-phase and the Z-phase is set to 0 degrees. 
 
     
     
       3. The AC rotary machine apparatus according to  claim 1 , wherein the temperature sensor is mounted on the AC rotary machine body, the secondary battery, or the power conversion device. 
     
     
       4. The AC rotary machine apparatus according to  claim 2 , wherein the temperature sensor is mounted on the AC rotary machine body, the battery, or the power conversion device.